Yeah the poop knife is not a knife made from poop, but a knife with the purpose of cutting poop.

"So what was your thesis focused on?"

"....Umm.... Hey nice weather we're having right!? Heh..."

Ok the Alaskan shank is debunked but you can still make poop micarta and use that to make a poop knife

So you're telling me the prison shit shanks stories weren't true?

That's a pretty solid contender for an IgNobel.

...is a sentence noone should ever have to hear. Or read.